Carburetor auxiliary



F. T. FARMER.

CARBURETOR AUXILIARY.

APPHCATION FILED 0CT,26,1920.

Patented 00mg, 1922..

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F. T. FARMER.

CARBURE'TOR AUXILIARY. APPLICATION FILED OCT, 26, 1920.

Patented Oct. 3, 1922.

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Patented etc. 3, W22.

FRANK '1. FARMILER, OI

PHOENIX, ARIZONA, ASSIGNQR 0F (ENE-HALF T0 PAUL N. FARMER, OE PHOENIX,ARIZONA.

, CARBURETOR AUXILIARY. I

Application filed October 26, 1920. Serial No. 19,653.

To all whom it may concern:

Be it known that I, F RANK T. FARMER, a-

citizen of the United States, residing at chambered body portion havinga constricted entrance opening and an exit opening for the combustiblegas from the carburetor; an inclined baflle plate in said chamberedportion against which the incoming gas impinges; and a "alve-controlledair inlet pipe projecting into the chamber and serving to direct astream of air against the face of the baffle plate during operation ofthe motor. The shape of the bafile plate and its location and positionwith reference to the other parts of the device, more particularly, theair inlet pipe and the gas inlet opening, all contribute materially tothe obtaining of a thorough mixture of the air and gas, and

ultimately the greatest amount of power from a given quantity ofvgasolene.

The construction of the device is such as to enable its ready connectionto the engine between the carburetor and the intake manifold withoutthenecessity of change of, or alteration in, known parts, use being made ofthe usual connecting bolts to secure the auxiliary in place.

A practical embodiment of the invention is illustrated in theaccompanying drawings, wherein like numerals indicate the same .partsthroughout the several views, and

- 1-1 of Fig. 2, the-auxiliary being shown in place betweenthecarburetor and the end flange of the engine manifold;

Fig-.2. a rear elevation of the device removed from' the engine; V Fig.3. a front elevation, the lower portion of the air inlet pipe beingbroken away and the valve omitted;

Fig. 4., a similar front elevation with the cover plate removed;

Fig. 5, a horizontal section taken on line 5-5 of Fig. 4:;

Fig. 6, a front perspective of the device with the cover plate removedin order to show clearly the arrangement of the bafie plaice withreference to the air inlet pipe; a-nc Fig. 7, a front perspective of thebaffle plate removed from the device.

In the drawings, Fig. 1, A represents a portion of a carburetor, and-B aportion of the intake manifold of an engine. The carburetor auxiliary isshown secured in operative position between these members, the adjacentportions of which are partially broken away to show the relativepositions of the parts.

The auxiliary proper, which may be made of any suitable metal, comprisesa main body portion 1 provided with an annular central mixing chamber 2.having at one end a. cenbaffle plate 5 provided with forwardlyprojecting ears 6, 7, the lower edges of the inclined plate and saidears extending below the upper end of inlet pipe 4:. Any suitable meansmay be provided for securing baflle 5 in proper position. As shown inthe drawings, this is accomplished by providing a. shoulder 8 on bodyportion 1 against which projection 9 and the outer extremities 10, 11 ofcars 6, 7 of the baflie plate are secured by solder, thereby rigidlysecuring the baflle in place. A cover plate 12 having a centralrestricted opening 13, serves to form the other wall of chamber 2, andis also secured to body 1 by solder, or other suitable means.

The upper end of air-inlet pipe 4, as stated, projects into chamber 2above the lower edge of baffle 5, but below inletopening 13 in coverplate 12. Suitably secured to the lower end of air inlet pipe 4: is avertically disposed plate 14.- haying an opening 15 registering with theopening in the endof the pipe to permit the entrance ofair. Pivofchamber 2, and

by the lower edge of battle 5, air inlet pipe otally secured to theupper portion of plate 14, by means of bolt 16 and nuts 17, is a valvemember 18 adapted to control the admission of air to pipe 4:. Spring 19serves to firmly maintain member 18 against the face of plate 14.Provided in the lower end of valve 18 is an opening 20 having acontracted portion 21, whereby entrance of the desired amount of airinto the auxiliary may be accurately controlled. A goose neck 22,rigidly attached to the upper end of valve member 18 and extendingaround manifold B, is adapted to be connected at its outer end with asuitable push and pull member 23 extending from a convenient point ofoperation, as beside the steering post in the case of an automobileengine. Slots 2a, 25 in the upper end of pipe 4 have a purpose whichwill appear later.

The device being in place as shown in Fig. 1, and the engine startedresulting in suction through manifold B as indicated by the arrows inFig. 1, the operation is as follows:

The suction in manifold B draws the usual combustible mixture of gas andair from carburetor A, through opening 13 of cover plate 12 into chamber2 of the auxiliary device, at the same time causing a quantity of addedair, depending on the position of valve member 18, to be injected intothe chamber. The combustible mixture passing through inlet opening 13and coming into contact with baffle 5, is by reason of the inclinedposition of the latter, deflected downwardly toward the upper end ofinlet pipe 4 and the jet of air being emitted therefrom, thusaccomplishing a thorough intermingling of the mixture and the added air.Ears 6, 7 on baffle 5 further serve to concentrate the mixture about theend of the air inlet pipe 4. It is to be noted that opening 13 in coverplate 12 is located centrally with relation to baffle plate 5 and is ofa size sufficiently small to cause the jet of combustible mixture tostrike bafiie 5 within the angles produced by ears 6, 7, and against thecentral inclined portion thereof so that the entire stream of mixture isthrown downwardly.

An important feature of the device is the angular openings orpassageways 26, 27 formed at either side of chamber 2 by the sides ofbattle 5, cover plate 12 and the sides openings 28, 29 formed 4: and thelower wall of chamber 2. The combined combustible mixture and added airformed on the forward side of baflie 5 is sucked through these openings,the several currents, thin at the acute angles of the open ings andthick at the obtuse angles, rushing into the portion of chamber 2 at therear side of battle 5, and finally coming together in a single stream asthe completed mixture passes through opening3 into manifold B on its wayto the engine. Slots 24, 25, in the upper end of pipe 4 permit a sheetof air to pass into the current of combustible mixture flowing underbattle 5, thus insuring thorough mixing of the added air with all thecombustible gas eptering through inlet opening 13.

While the construction shown illustrates a practical embodimentof theinvention,it is not intended that the same shall be confined to thesemeans except as limited by the appended claims.

I claim:

1. The combination in a device of the character described, of a mixingchamber having a gas inlet opening and a gas outlet opening: and aninclined baffle plate located in said chamber intermediate saidopenings, the mixing chamber being provided with an air inlet fordischarging air transversely of said gas inlet opening and against theface of said baflie plate facing said gas inlet opening.

2. The combination in a device of the character described. of a mixingchamber having a restricted gas inlet opening and a restricted gasoutlet opening; and an inclined baflie plate located in. said chamberbetween said openings, the chamber being provided with an air inlet fordischarging air transversely of said gas inlet opening and against theface ofsaid baffle plate facing said gas inlet opening.

3. The combination in a device of the character described, of a mixingchamber having a central restricted gas inlet opening and a gas outletopening; and an inclined baffle plate located in said chamberintermediate said openings and extending completely across said inletopening, said chamber being provided with an air inlet for dischargingair transversely of said gas inlet opening and against the face of saidbaffle plate facing said gas inlet opening. 1

4. The combination in a device of the character described, of a mixingchamber having a gas inlet and a gas outlet; and an inclined bafiieplate having ears projecting forwardly from the lower portion thereof,said chamber also being provided with an auxiliary air inlet opening inline with said baffle plate.

5. The combination in a device of the character described, of a mixingchamber having a gas inlet, a gas outlet and an auxiliary air inletintermediate said gas inlet and said as outlet; and a baflie platehaving an inc forwardly projecting ears, said inclined body portionoverlying said air inlet.

6. In a device of the character described, the combination of a mixingchamber having an air inlet at its bottom and a gas inlet at its forwardend; and an inclined baffle ined body portion provided with 'inga platelocated in said chamber and provided with forwardly projecting ears,saidgas inlet opening being of a diameter not greater than the width ofthe inclined portion of said baflie plate.

7. In a device of the character described,

the combination of, a mixing chamber having a gas inlet and an airinlet; and a bafiie plate located in said chamber, said bailie platecomprising an inclined body portion extending across said gas inlet andabove the air inlet, and forwardly projecting ears extending from thesides of said body portion about the air inlet.

8. In a device of the character described, the combination of a mixingchamber havgas inlet" and a gas outlet; an inclined bafile plate locatedin said chamber intermediate said inlet and said outlet;

and an air pipe for discharging air transversely of said as inlet andagainst the face of said ba e late facing said gas inlet, said pipeexten ing within said chamber to a point above the lower edge of thebaffle plate.

9. In a device of the character described,

' the combination of a mixing chamber having an inlet and an outlet; aninclined bame plate located in said chamber intermediate said inlet andsaid outlet; and an air pipe extending within said chamber to a pointabove the lower edge of said baiile plate, said pipe being slotted atits inner end.

l0. In a device of the character described, the combination of a mixingchamber having an inlet and an outlet; an inclined baflie plate locatedin said chamber intermediate said inlet and said outlet; and an air pipeextending within said chamber to a point above the lower edge of saidbafie plate and below said inlet.

11. In a device of the character described, the combination of a mixingchamber hav ing a gas inlet and a gas outlet; and a baffle plate locatedin said chamber intermediate said gas inlet and said gas outlet, saidbafile plate comprising an approximately hexagonal body portion and apair of forwardly projecting ears extending from the lower sides thereofabout an auxiliary air inlet provided in said chamber.

12. In a device of the character described, the combination of acylindrical mixing chamber; an air pipe extending partially within saidchamber, and a baflle plate located within said chamber and overlyingsaid air pipe, said baffle plate comprising an approximately hexagonalinclined body portion, secured at its upper side to the wall of saidchamber, and forwardly projecting ears extending from the lower sides ofsaid bod ortion and attached to the wall of sai c amber, said chamberbeing provided with a gas inlet, wholly in line with the inclined bodyportion of said baflie plate.

13. In a device of the character described, the combination of acylindrical mixing chamber having a gas inlet, a gas outlet and an airinlet; and an angular baflie located within said chamber intermediatesaid air inlet and said gas outlet, said bame being secured at intervalson its periphery to the walls of said chamber to form restrictedopenings for thepassage of the gas

